A Search for Wavelike Dark Matter with Dielectrically-loaded Multimode Cavities PDF Download
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Author: Raphael Cervantes Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
Dark matter makes up 85% of the matter in the universe and 27% of its energy density, but we don’t know what comprises dark matter. There are several compelling candidates for dark matter that have wavelike properties, including axions and dark photons. Wavelike dark matter can be detected using ultra-sensitive microwave cavities. The ADMX experiment usesa cylindrical cavity operating at the fundamental mode to search for axions in the few [microelectronvolt] mass range. However, the ADMX search technique becomes increasingly challenging with increasing axion mass. This is because higher masses require smaller-diameter cavities, and a smaller cavity volume reduces the signal strength. Thus, there is interest in developing more sophisticated resonators to overcome this problem. The ADMX-Orpheus experiment uses a dielectric-loaded Fabry-Perot cavity to search for axions and dark photons with masses approaching 100 [microelectronvolts]. Orpheus maintains a large volume by operating at a higher-order mode, and the dielectrics shape the electric field so that the mode couples more strongly to the axion and dark photon. This thesis describes the development and commissioning of ADMX-Orpheus to search for dark photons with masses between 65.5 [microelectronvolts] and 69.3 [microelectronvolts]. This thesis includes motivation for why dielectric cavities are suitable for detecting axions and dark photons around 100 [microelectronvolts]; the design and characterization of such a cavity, including the resonant frequency, quality factor, and detection volume of the mode of interest; the mechanical design, electronics, and data acquisition system for the Orpheus experiment; the inaugural search for dark photons 65.5 [microelectronvolts] and 69.3 [microelectronvolts]; and the resulting excluded parameter space; plans for upgrading Orpheus to search for axions in a similar mass range.
Author: Raphael Cervantes Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
Dark matter makes up 85% of the matter in the universe and 27% of its energy density, but we don’t know what comprises dark matter. There are several compelling candidates for dark matter that have wavelike properties, including axions and dark photons. Wavelike dark matter can be detected using ultra-sensitive microwave cavities. The ADMX experiment usesa cylindrical cavity operating at the fundamental mode to search for axions in the few [microelectronvolt] mass range. However, the ADMX search technique becomes increasingly challenging with increasing axion mass. This is because higher masses require smaller-diameter cavities, and a smaller cavity volume reduces the signal strength. Thus, there is interest in developing more sophisticated resonators to overcome this problem. The ADMX-Orpheus experiment uses a dielectric-loaded Fabry-Perot cavity to search for axions and dark photons with masses approaching 100 [microelectronvolts]. Orpheus maintains a large volume by operating at a higher-order mode, and the dielectrics shape the electric field so that the mode couples more strongly to the axion and dark photon. This thesis describes the development and commissioning of ADMX-Orpheus to search for dark photons with masses between 65.5 [microelectronvolts] and 69.3 [microelectronvolts]. This thesis includes motivation for why dielectric cavities are suitable for detecting axions and dark photons around 100 [microelectronvolts]; the design and characterization of such a cavity, including the resonant frequency, quality factor, and detection volume of the mode of interest; the mechanical design, electronics, and data acquisition system for the Orpheus experiment; the inaugural search for dark photons 65.5 [microelectronvolts] and 69.3 [microelectronvolts]; and the resulting excluded parameter space; plans for upgrading Orpheus to search for axions in a similar mass range.
Author: John D. Joannopoulos Publisher: Princeton University Press ISBN: 1400828244 Category : Science Languages : en Pages : 305
Book Description
Since it was first published in 1995, Photonic Crystals has remained the definitive text for both undergraduates and researchers on photonic band-gap materials and their use in controlling the propagation of light. This newly expanded and revised edition covers the latest developments in the field, providing the most up-to-date, concise, and comprehensive book available on these novel materials and their applications. Starting from Maxwell's equations and Fourier analysis, the authors develop the theoretical tools of photonics using principles of linear algebra and symmetry, emphasizing analogies with traditional solid-state physics and quantum theory. They then investigate the unique phenomena that take place within photonic crystals at defect sites and surfaces, from one to three dimensions. This new edition includes entirely new chapters describing important hybrid structures that use band gaps or periodicity only in some directions: periodic waveguides, photonic-crystal slabs, and photonic-crystal fibers. The authors demonstrate how the capabilities of photonic crystals to localize light can be put to work in devices such as filters and splitters. A new appendix provides an overview of computational methods for electromagnetism. Existing chapters have been considerably updated and expanded to include many new three-dimensional photonic crystals, an extensive tutorial on device design using temporal coupled-mode theory, discussions of diffraction and refraction at crystal interfaces, and more. Richly illustrated and accessibly written, Photonic Crystals is an indispensable resource for students and researchers. Extensively revised and expanded Features improved graphics throughout Includes new chapters on photonic-crystal fibers and combined index-and band-gap-guiding Provides an introduction to coupled-mode theory as a powerful tool for device design Covers many new topics, including omnidirectional reflection, anomalous refraction and diffraction, computational photonics, and much more.
Author: Hermann A. Haus Publisher: Springer Science & Business Media ISBN: 3662041901 Category : Science Languages : en Pages : 572
Book Description
From the reviews: "Haus’ book provides numerous insights on topics of wide importance, and contains much material not available elsewhere in book form. [...] an indispensable resource for those working in quantum optics or electronics." Optics & Photonics News
Author: Yi Huang Publisher: John Wiley & Sons ISBN: 0470772921 Category : Technology & Engineering Languages : en Pages : 378
Book Description
Practical, concise and complete reference for the basics of modern antenna design Antennas: from Theory to Practice discusses the basics of modern antenna design and theory. Developed specifically for engineers and designers who work with radio communications, radar and RF engineering, this book offers practical and hands-on treatment of antenna theory and techniques, and provides its readers the skills to analyse, design and measure various antennas. Key features: Provides thorough coverage on the basics of transmission lines, radio waves and propagation, and antenna analysis and design Discusses industrial standard design software tools, and antenna measurement equipment, facilities and techniques Covers electrically small antennas, mobile antennas, UWB antennas and new materials for antennas Also discusses reconfigurable antennas, RFID antennas, Wide-band and multi-band antennas, radar antennas, and MIMO antennas Design examples of various antennas are provided Written in a practical and concise manner by authors who are experts in antenna design, with experience from both academia and industry This book will be an invaluable resource for engineers and designers working in RF engineering, radar and radio communications, seeking a comprehensive and practical introduction to the basics of antenna design. The book can also be used as a textbook for advanced students entering a profession in this field.
Author: Andrea Cusano Publisher: Springer ISBN: 3319069985 Category : Science Languages : en Pages : 377
Book Description
This book focuses on a research field that is rapidly emerging as one of the most promising ones for the global optics and photonics community: the “lab-on-fiber” technology. Inspired by the well-established "lab on-a-chip" concept, this new technology essentially envisages novel and highly functionalized devices completely integrated into a single optical fiber for both communication and sensing applications. Based on the R&D experience of some of the world's leading authorities in the fields of optics, photonics, nanotechnology, and material science, this book provides a broad and accurate description of the main developments and achievements in the lab-on-fiber technology roadmap, also highlighting the new perspectives and challenges to be faced. This book is essential for scientists interested in the cutting-edge fiber optic technology, but also for graduate students.
Author: Richard I. Epstein Publisher: John Wiley & Sons ISBN: 3527628053 Category : Science Languages : en Pages : 258
Book Description
Edited by the two top experts in the field with a panel of International contributors, this is a comprehensive up-to-date review of research and applications. Starting with the basic physical principles of laser cooling of solids, the monograph goes on to discuss the current theoretical issues being resolved and the increasing demands of growth and evaluation of high purity materials suitable for optical refrigeration, while also examining the design and applications of practical cryocoolers. An advanced text for scientists, researchers, engineers, and students (masters, PHDs and Postdoc) in laser and optical material science, and cryogenics.
Author: Paul R. Prucnal Publisher: CRC Press ISBN: 1498725244 Category : Science Languages : en Pages : 412
Book Description
This book sets out to build bridges between the domains of photonic device physics and neural networks, providing a comprehensive overview of the emerging field of "neuromorphic photonics." It includes a thorough discussion of evolution of neuromorphic photonics from the advent of fiber-optic neurons to today’s state-of-the-art integrated laser neurons, which are a current focus of international research. Neuromorphic Photonics explores candidate interconnection architectures and devices for integrated neuromorphic networks, along with key functionality such as learning. It is written at a level accessible to graduate students, while also intending to serve as a comprehensive reference for experts in the field.
Author: Jeff Hecht Publisher: Oxford University Press, USA ISBN: 9780195162554 Category : Science Languages : en Pages : 372
Book Description
This text presents the history of the development of fibre optic technology, explaining the scientific challenges that needed to be overcome, the range of applications and future potential for this fundamental communications technology.
Author: Geoffrey Brooker Publisher: Oxford University Press ISBN: 0198599641 Category : Science Languages : en Pages : 413
Book Description
The book describes classical (non-quantum) optical phenomena and the instruments and technology based on them. It includes many cutting-edge areas of modern physics and its applications which are not covered in many larger and more expensive books.
Author: Raphael Cervantes
Author: Raphael Cervantes
Author: John D. Joannopoulos
Author: Hermann A. Haus
Author: Yi Huang
Author: Andrea Cusano
Author: Richard I. Epstein
Author: Paul R. Prucnal
Author: Jeff Hecht
Author: Geoffrey Brooker
Author: Gerard Mourou